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fixes an drag&draw issue in the k-map

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hneemann 2020-10-23 14:35:55 +02:00
parent 036410ce57
commit 9e478d9f5a
1 changed files with 32 additions and 25 deletions
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57
src/main/java/de/neemann/digital/gui/components/karnaugh/KarnaughMapComponent.java
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@ -45,7 +45,7 @@ public class KarnaughMapComponent extends JComponent {
private int cellSize;
private int xDrag;
private int yDrag;
private int startVar = -1;
private VarRect startVarRect = null;
/**
* Creates a new instance
@ -109,8 +109,8 @@ public class KarnaughMapComponent extends JComponent {
gr.fillRect(0, 0, width, height);
gr.setColor(Color.BLACK);
if (startVar >= 0)
gr.drawString(vars.get(startVar).getIdentifier(), xDrag, yDrag);
if (startVarRect != null)
startVarRect.fragment.draw(gr, xDrag, yDrag);
if (kv != null) {
AffineTransform trans = gr.getTransform(); // store the old transform
@ -267,7 +267,7 @@ public class KarnaughMapComponent extends JComponent {
int xFr = row * cellSize + xPos - xOffs;
int yFr = col * cellSize + yPos - yOffs;
fr.draw(gr, xFr, yFr);
varPosList.add(new VarRect(var, xFr, yFr + fontMetrics.getDescent() - fr.getHeight(), fr.getWidth(), fr.getHeight()));
varPosList.add(new VarRect(var, xFr, yFr + fontMetrics.getDescent() - fr.getHeight(), fr.getWidth(), fr.getHeight(), fr));
}
private GraphicsFormatter.Fragment getFragment(int var, boolean invert) {
@ -312,9 +312,9 @@ public class KarnaughMapComponent extends JComponent {
int row = kv.getCell(y, x).getBoolTableRow();
tableCellModifier.modify(boolTable, row);
} else {
int varAt = findVarAt(mouseEvent);
if (varAt >= 0) {
mapLayout.toggleInvertByMouse(varAt);
VarRect varAt = findVarRect(mouseEvent);
if (varAt != null) {
mapLayout.toggleInvertByMouse(varAt.var);
update();
}
}
@ -323,12 +323,12 @@ public class KarnaughMapComponent extends JComponent {
@Override
public void mousePressed(MouseEvent e) {
startVar = findVarAt(e);
startVarRect = findVarRect(e);
}
@Override
public void mouseDragged(MouseEvent e) {
if (startVar >= 0) {
if (startVarRect != null) {
xDrag = e.getX();
yDrag = e.getY();
repaint();
@ -337,37 +337,44 @@ public class KarnaughMapComponent extends JComponent {
@Override
public void mouseReleased(MouseEvent e) {
int endVar = findVarAt(e);
if (endVar != startVar
&& endVar >= 0 && startVar >= 0
&& endVar < vars.size() && startVar <= vars.size()) {
mapLayout.swapByMouse(startVar, endVar);
startVar = -1;
VarRect endVarRect = findVarRect(e);
if (startVarRect != null && endVarRect != null
&& startVarRect.isValid(vars.size())
&& endVarRect.isValid(vars.size())
&& startVarRect.var != endVarRect.var) {
mapLayout.swapByMouse(startVarRect.var, endVarRect.var);
startVarRect = null;
update();
} else {
startVar = -1;
startVarRect = null;
repaint();
}
}
}
private int findVarAt(MouseEvent e) {
int x = e.getX() - xOffs;
int y = e.getY() - yOffs;
for (VarRect r : varPosList) {
if (r.rect.contains(x, y))
return r.var;
}
return -1;
private VarRect findVarRect(MouseEvent e) {
int x = e.getX() - xOffs;
int y = e.getY() - yOffs;
for (VarRect r : varPosList) {
if (r.rect.contains(x, y))
return r;
}
return null;
}
private static final class VarRect {
private final Rectangle rect;
private final int var;
private final GraphicsFormatter.Fragment fragment;
private VarRect(int var, int x, int y, int width, int height) {
private VarRect(int var, int x, int y, int width, int height, GraphicsFormatter.Fragment fragment) {
this.var = var;
rect = new Rectangle(x, y, width, height);
this.fragment = fragment;
}
private boolean isValid(int size) {
return var >= 0 && var < size;
}
}